Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual presença tem um local em Ryavallen?
 ###Tabelas: CREATE TABLE international_goals (international_goals_id AUTO_INCREMENT PRIMARY KEY, Goal INT, Date VARCHAR, Score VARCHAR, Result VARCHAR, Competition VARCHAR) CREATE TABLE allsvenskan_2004 (allsvenskan_2004_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Venue VARCHAR, Opponents VARCHAR, Score VARCHAR, Comp VARCHAR, Attendance VARCHAR) CREATE TABLE 2007_2008_table (2007_2008_table_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Played VARCHAR, Won VARCHAR, Drawn VARCHAR, Lost VARCHAR, Points for VARCHAR, Points against VARCHAR, Tries for VARCHAR, Tries against VARCHAR, Try bonus VARCHAR, Losing bonus VARCHAR, Points VARCHAR) CREATE TABLE stadiums (stadiums_id AUTO_INCREMENT PRIMARY KEY, Stadium VARCHAR, City VARCHAR, Capacity INT, Matches played INT, Overall attendance INT, Average attendance per match INT, Average attendance as % of Capacity VARCHAR, Overall goals scored INT, Average goals scored per match VARCHAR, Elevation VARCHAR) CREATE TABLE classification_of_algorithms (classification_of_algorithms_id AUTO_INCREMENT PRIMARY KEY, Counting Method VARCHAR, Basis VARCHAR, Name VARCHAR, Directed / Undirected VARCHAR, Induced / Non-Induced VARCHAR)  
SELECT Attendance FROM allsvenskan_2004 WHERE Venue = ryavallen